How to draw a hole into an arc ?

Question

How to draw a hole into an arc ?

Shay Wilner 1,746

Hello in platform xamarin android i draw 3 arc to get a disk with 3 colors.I try now to draw a hole i set paint colo

thepaint.Color = Android.Graphics.Color.DarkOrange;              thecanvas.DrawArc(0, 0, diameter, diameter, 0, 120, true, thepaint);               thepaint.Color = Android.Graphics.Color.Indigo;               thecanvas.DrawArc(0, 0, diameter, diameter, 120, 120, true, thepaint);                thepaint.Color = Android.Graphics.Color.DarkCyan;                thecanvas.DrawArc(0, 0, diameter, diameter,240, 120, true, thepaint);              thepaint.SetStyle(Paint.Style.Fill);             thepaint.Color = Android.Graphics.Color.Transparent;               thecanvas.DrawCircle(diameter / 2, diameter / 2, diameter / 4, thepaint);

r Screenshot_20231228_111451_plx

lĺ

to transparent but i don't get any result instead the black fill circle to draw a transparent hole

C#

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2023-12-29T05:17:14.16+00:00

The code snippets are empty, could you edit the post again?
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2024-01-02T09:41:47.1866667+00:00

Could you please share more code snippets about the thecanvas, thepaint? What type is it?

3 answers

Your answer

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2023-12-29T05:17:14.16+00:00

The code snippets are empty, could you edit the post again?
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2024-01-02T09:41:47.1866667+00:00

Could you please share more code snippets about the thecanvas, thepaint? What type is it?

Answer 1

thepaint.Color = Android.Graphics.Color.DarkOrange;              thecanvas.DrawArc(0, 0, diameter, diameter, 0, 120, true, thepaint);               thepaint.Color = Android.Graphics.Color.Indigo;               thecanvas.DrawArc(0, 0, diameter, diameter, 120, 120, true, thepaint);                thepaint.Color = Android.Graphics.Color.DarkCyan;                thecanvas.DrawArc(0, 0, diameter, diameter,240, 120, true, thepaint);              thepaint.SetStyle(Paint.Style.Fill);             thepaint.Color = Android.Graphics.Color.Transparent;               thecanvas.DrawCircle(diameter / 2, diameter / 2, diameter / 4, thepaint);

Answer 2

thepaint.Color = Android.Graphics.Color.DarkOrange;
             thecanvas.DrawArc(0, 0, diameter, diameter, 0, 120, true, thepaint);
              thepaint.Color = Android.Graphics.Color.Indigo;
              thecanvas.DrawArc(0, 0, diameter, diameter, 120, 120, true, thepaint);
               thepaint.Color = Android.Graphics.Color.DarkCyan;
               thecanvas.DrawArc(0, 0, diameter, diameter,240, 120, true, thepaint);
            thepaint.SetStyle(Paint.Style.Fill);
            thepaint.Color = Android.Graphics.Color.Transparent;
              thecanvas.DrawCircle(diameter / 2, diameter / 2, diameter / 4, thepaint);

Answer 3

Shay Wilner 1,746

  thepaint.Color = Android.Graphics.Color.DarkOrange;

     thecanvas.DrawArc(0, 0, diameter, diameter, 0, 120, true, thepaint);

      thepaint.Color = Android.Graphics.Color.Indigo;

      thecanvas.DrawArc(0, 0, diameter, diameter, 120, 120, true, thepaint);

       thepaint.Color = Android.Graphics.Color.DarkCyan;

       thecanvas.DrawArc(0, 0, diameter, diameter,240, 120, true, thepaint);

    thepaint.SetStyle(Paint.Style.Fill);

    thepaint.Color = Android.Graphics.Color.Transparent;

      thecanvas.DrawCircle(diameter / 2, diameter / 2, diameter / 4, thepaint);

Shay Wilner 1,746 Reputation points

2024-01-04T20:13:37.27+00:00
private Canvas thecanvas; private Android.Graphics.Paint thepaint = new Paint();

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How to draw a hole into an arc ?

3 answers

Your answer